Alert archive / Iowa / Flash Flood Warnings in 2014

Flash Flood Warning 10, NWS Quad Cities, IA

June 29, 2014Benton County, Jones County, Linn County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jun 29, 2014, 10:53 PM CDT for Benton County, Jones County, Linn County, Iowa. It was in force for 6 hr. 28 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 29, 2014, 10:53 PM CDT (03:53 UTC)
Expired: Jun 30, 2014, 4:45 AM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Benton County, IA, Jones County, IA, Linn County, IA

The radar

The Quad Cities radar (KDVN), 99 km from the middle of the area, began a volume at 03:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 29, 11:27 PM CDT	HEAVY RAIN 2	2 Nne Norway, IA	THIS EVENING
Jun 29, 11:38 PM CDT	HEAVY RAIN 6	1 Wsw Cedar Rapids, IA	SINCE 10 PM.
Jun 29, 11:51 PM CDT	FLASH FLOOD	Olin, IA	EMERGENCY MANAGER REPORTS FLASH FLOODING IN OLIN, NEAR ONSLOW AND 3 MILES NORTH OF ONSLOW. A PUBLIC REPORT OF 3.30 INCHES 3 MILES NORTH SCOTCH GROVE.
Jun 29, 11:55 PM CDT	FLASH FLOOD	3 E Cedar Rapids, IA	WIDESPREAD FLASH FLOODING AND BASEMENTS FLOODING
Jun 29, 11:55 PM CDT	FLASH FLOOD	Mount Vernon, IA	TOTAL WASHOUT OF HIGHWAY 1 NORTH OF MOUNT VERNON. VEHICLE WITHIN THE WASHOUT BUT UNSURE OF OCCUPANTS STATUS. RELAYED BY KCRG-TV.
Jun 29, 11:55 PM CDT	HEAVY RAIN 4	5 Wsw Cedar Rapids, IA
Jun 29, 11:55 PM CDT	HEAVY RAIN 4	5 Wsw Cedar Rapids, IA
Jun 29, 11:55 PM CDT	HEAVY RAIN 4.5	2 Wnw Cedar Rapids, IA
Jun 29, 11:55 PM CDT	HEAVY RAIN 4.5	2 Wnw Cedar Rapids, IA
Jun 29, 11:59 PM CDT	HEAVY RAIN 4.84	Sw Cedar Rapids, IA	FELL FROM 1045PM TO 1159PM.
Jun 30, 12:20 AM CDT	FLASH FLOOD	Cedar Rapids, IA	CARS ARE FULLY SUBMERGED WITH SOME FIRE TRUCKS STRANDED. 3 TO 4 FIRE DEPARTMENTS ARE CONDUCTING BOAT RESCUES.
Jun 30, 12:20 AM CDT	FLASH FLOOD	Cedar Rapids, IA	WIDESPREAD FLASH FLOODING ACROSS LINN COUNTY.
Jun 30, 12:24 AM CDT	HEAVY RAIN 4	1 Nw Cedar Rapids, IA
Jun 30, 12:24 AM CDT	HEAVY RAIN 4	1 Nw Cedar Rapids, IA
Jun 30, 12:35 AM CDT	HEAVY RAIN 4	1 Ne Marion, IA
Jun 30, 12:35 AM CDT	HEAVY RAIN 4	1 Ne Marion, IA
Jun 30, 12:35 AM CDT	HEAVY RAIN 4.8	2 W Cedar Rapids, IA
Jun 30, 12:35 AM CDT	HEAVY RAIN 4.8	2 W Cedar Rapids, IA
Jun 30, 12:44 AM CDT	HEAVY RAIN 4.69	Olin, IA	POWER IS OUT.
Jun 30, 12:55 AM CDT	HEAVY RAIN 4	3 Nne Cedar Rapids, IA
Jun 30, 12:55 AM CDT	HEAVY RAIN 4	3 Nne Cedar Rapids, IA
Jun 30, 1:00 AM CDT	FLASH FLOOD	Morley, IA	TOWN EVACUATED.
Jun 30, 2:05 AM CDT	HEAVY RAIN 4.3	Nnw Springville, IA	STORM TOTAL.
Jun 30, 2:26 AM CDT	HEAVY RAIN 2.75	3 Ene Marion, IA
Jun 30, 2:26 AM CDT	HEAVY RAIN 2.75	3 Ene Marion, IA
Jun 30, 2:45 AM CDT	FLASH FLOOD	Cedar Rapids, IA	MERCY HOSPITAL IMPACTED SIGNIFICANTLY BY FLASH FLOODING AS REPORTED BY HOSPITAL STAFF.
Jun 30, 3:25 AM CDT	HEAVY RAIN 4.7	1 Sse Cedar Rapids, IA
Jun 30, 3:25 AM CDT	HEAVY RAIN 4.7	1 Sse Cedar Rapids, IA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.9 hours before the alert went out and 105 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1816 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1110 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

939 
WGUS53 KDVN 300353
FFWDVN
IAC011-105-113-300945-
/O.NEW.KDVN.FF.W.0010.140630T0353Z-140630T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1053 PM CDT SUN JUN 29 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BENTON COUNTY IN EAST CENTRAL IOWA...
  SOUTHERN JONES COUNTY IN EAST CENTRAL IOWA...
  THIS INCLUDES THE CITY OF ANAMOSA...
  LINN COUNTY IN EAST CENTRAL IOWA...
  THIS INCLUDES THE CITY OF CEDAR RAPIDS...

* UNTIL 445 AM CDT

* AT 1049 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AMBER...
  WHITTIER...VIOLA...TODDVILLE...SPRINGVILLE...ROBINS...PALO...
  MARION...HIAWATHA...BERTRAM...ALBURNETT...VAN HORNE...SHELLSBURG...
  NEWHALL...KEYSTONE...GARRISON...ATKINS...WYOMING...STONE CITY...
  ONSLOW...OLIN...MORLEY...MARTELLE AND CENTER JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

FLASH FLOODING IS LIKELY ON AREA STREAMS AND CREEKS.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

&&

LAT...LON 4215 9230 4217 9097 4195 9096 4195 9136
      4186 9137 4186 9230

$$

HAASE

2 follow-up statements

511 
WGUS73 KDVN 300503
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1203 AM CDT MON JUN 30 2014

IAC011-105-113-300945-
/O.CON.KDVN.FF.W.0010.000000T0000Z-140630T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINN IA-BENTON IA-JONES IA-
1203 AM CDT MON JUN 30 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
SOUTHERN JONES...BENTON AND LINN COUNTIES...

AT 1155 PM CDT...LAW ENFORCEMENT AND TRAINED SPOTTERS REPORTED 
WIDESPREAD MAJOR FLASH FLOODING IN CEDAR RAPIDS. BASEMENT FLOODING 
HAS ALSO BEEN REPORTED. RAINFALL AMOUNTS OF 3 TO 6 INCHES HAVE BEEN 
MEASURED. MORE THUNDERSTORMS WERE DEVELOPING ACROSS THE AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWHALL...
AMBER...WHITTIER...VIOLA...TODDVILLE...SPRINGVILLE...ROBINS...PALO...
MARION...HIAWATHA...ALBURNETT...VAN HORNE...SHELLSBURG...KEYSTONE...
GARRISON...ATKINS...WYOMING...STONE CITY...ONSLOW...OLIN...MORLEY...
MARTELLE...CENTER JUNCTION AND ANAMOSA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

FLASH FLOODING IS LIKELY ON AREA STREAMS AND CREEKS.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY IN FLOOD WATERS AS SHALLOW AS 1 FOOT.

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT MONDAY MORNING FOR
EAST CENTRAL IOWA AND NORTHWEST ILLINOIS. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR EASTERN
IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4215 9230 4217 9097 4195 9096 4195 9136
      4186 9137 4186 9230

$$

HAASE

356 
WGUS73 KDVN 300932
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
432 AM CDT MON JUN 30 2014

IAC011-105-113-300942-
/O.CAN.KDVN.FF.W.0010.000000T0000Z-140630T0945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINN IA-BENTON IA-JONES IA-
432 AM CDT MON JUN 30 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN JONES...
BENTON AND LINN COUNTIES...

RAINFALL HAS ENDED BUT RUNOFF WILL CONTINUE INTO THIS MORNING AND AN 
AREAL FLOOD WARNING HAS BEEN ISSUED UNTIL 1030 AM.


LAT...LON 4215 9230 4217 9097 4195 9096 4195 9136
      4186 9137 4186 9230

$$

HAASE

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 29, 8:53 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Linn	67 min
Jun 29, 10:01 PM CDT	Flash Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 29, 10:08 PM CDT	Severe Thunderstorm Warning	DVN	Dubuque, Jackson, Jones	37 min
Jun 29, 10:31 PM CDT	Tornado Warning	DVN	Jackson, Jones	29 min
Jun 29, 11:10 PM CDT	Flash Flood Warning	DVN	Clinton, Dubuque, Jackson, Jones	6 hr
Jun 29, 11:10 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Linn	50 min
Jun 29, 11:12 PM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	26 hr
Jun 29, 11:15 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Iowa, Johnson, Keokuk, Linn and 2 more	45 min
Jun 29, 11:51 PM CDT	Flash Flood Warning	DVN	Cedar, Clinton, Scott	6 hr
Jun 30, 12:30 AM CDT	Severe Thunderstorm Warning	DVN	Clinton	45 min
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Cedar, Johnson, Linn	7 days
Jun 30, 12:49 AM CDT	River Flood Warning	DVN	Lee	4 days
Jun 30, 1:05 AM CDT	River Flood Warning	DVN	Cedar, Jones, Linn	8 days
Jun 30, 1:33 AM CDT	Flash Flood Warning	DVN	Muscatine, Scott	6 hr
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Delaware, Jones	4 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Jackson	5 days
Jun 30, 2:28 AM CDT	River Flood Warning	DVN	Buchanan, Linn	4 days
Jun 30, 3:27 AM CDT	Areal Flood Warning	DVN	Benton, Buchanan, Delaware, Dubuque, Jones, Linn	6 hr
Jun 30, 4:31 AM CDT	Areal Flood Warning	DVN	Benton, Jones, Linn	6 hr
Jun 30, 4:34 AM CDT	Areal Flood Warning	DVN	Clinton, Dubuque, Jackson, Jones	6 hr
Jun 30, 4:39 AM CDT	Areal Flood Warning	DVN	Cedar, Clinton, Scott	6 hr
Jun 30, 5:03 AM CDT	Areal Flood Warning	DVN	Scott	6 hr
Jun 30, 5:49 AM CDT	River Flood Warning	DVN	Benton, Linn	6 days
Jun 30, 8:16 AM CDT	Special Weather Statement	DVN	Des Moines	59 min
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Washington	10 days
Jun 30, 12:05 PM CDT	River Flood Warning	DVN	Johnson, Louisa, Washington	21 days
Jun 30, 1:51 PM CDT	Severe Thunderstorm Warning	DVN	Benton	54 min
Jun 30, 2:14 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	61 min
Jun 30, 2:17 PM CDT	Tornado Warning	DVN	Benton	28 min
Jun 30, 2:21 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan	24 min
Jun 30, 2:27 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk	48 min
Jun 30, 2:38 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Linn	37 min
Jun 30, 2:46 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	44 min
Jun 30, 2:53 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	39 min
Jun 30, 2:54 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more	66 min
Jun 30, 2:59 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Jackson, Jones, Muscatine, Scott	46 min
Jun 30, 3:13 PM CDT	Flash Flood Warning	DVN	Benton, Cedar, Iowa, Johnson, Jones, Linn	6 hr
Jun 30, 3:18 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson	42 min
Jun 30, 3:44 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Dubuque, Jackson, Scott	46 min
Jun 30, 3:53 PM CDT	Flash Flood Warning	DVN	Keokuk, Louisa, Muscatine, Washington	6 hr
Jun 30, 4:08 PM CDT	Special Weather Statement	DVN	Clinton, Dubuque, Jackson, Scott	52 min
Jun 30, 4:35 PM CDT	Flash Flood Warning	DVN	Scott	6 hr
Jun 30, 6:02 PM CDT	Flash Flood Warning	DVN	Buchanan, Delaware, Dubuque	6 hr

Nearby

Flash Flood Warnings in Iowa, 2014 Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.